CN107024389B - Asphalt mixture transverse shear deformation acquisition device and method thereof - Google Patents
Asphalt mixture transverse shear deformation acquisition device and method thereof Download PDFInfo
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- CN107024389B CN107024389B CN201710376018.5A CN201710376018A CN107024389B CN 107024389 B CN107024389 B CN 107024389B CN 201710376018 A CN201710376018 A CN 201710376018A CN 107024389 B CN107024389 B CN 107024389B
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- rectangular frame
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- 239000010426 asphalt Substances 0.000 title claims abstract description 42
- 239000000203 mixture Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 69
- 238000010008 shearing Methods 0.000 claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a device and a method for collecting transverse shearing deformation of asphalt mixture, wherein the device comprises a supporting mechanism and a deformation collecting mechanism, the supporting mechanism comprises a base, a left bracket and a right bracket, the lower parts of the left bracket and the right bracket are respectively and symmetrically fixed on the left side and the right side of the base, and an asphalt mixture test piece is arranged on the base; the deformation acquisition mechanism comprises a first rectangular frame, a second rectangular frame, an acquisition platform, a first detection device and a second detection device, wherein the first rectangular frame and the second rectangular frame are fixed on a left bracket and a right bracket, and the first rectangular frame is arranged on the upper edge of the second rectangular frame; the first rectangular frame and the second rectangular frame are respectively provided with a round hole, the first detection device penetrates through the round holes in the first rectangular frame, and the second detection device penetrates through the round holes in the second rectangular frame; the first detection device and the second detection device are connected with the acquisition platform through transmission lines. The invention can improve the detection precision of displacement and has simple acquisition mode.
Description
Technical Field
The invention relates to a device and a method for collecting transverse shear deformation of an asphalt mixture, and belongs to the field of evaluation of deformation degree of asphalt pavements.
Background
Rutting is the result of the combined action of vertical compaction of a travelling crane and transverse shearing flow of asphalt mixture, and transverse deformation has a certain influence on the shearing capacity of a pavement. For shear deformation of asphalt pavement, the current common disease degree evaluation technology is rutting depth test, which is to measure vertical compaction deformation of rutting, and few test methods are used to directly measure transverse shear deformation of asphalt mixture.
The traditional asphalt mixture shear deformation acquisition device is used for acquiring images of an asphalt mixture test piece and then processing the images. However, due to the discrete aggregate distribution of the asphalt mixture and the shaking distortion phenomenon easily occurring when images are acquired, the accuracy of the post-image processing result is greatly affected.
Disclosure of Invention
The invention aims at solving the defects of the prior art, and provides a transverse shearing deformation acquisition device and a transverse shearing deformation acquisition method for asphalt mixture without image acquisition and processing, so that the transverse shearing deformation can be directly obtained through a detection device, the detection precision of the deformation is improved, and a foundation is laid for the research of the bearing capacity of a later asphalt pavement.
The invention aims to realize that an asphalt mixture transverse shear deformation acquisition device comprises a supporting mechanism and a deformation acquisition mechanism, and is characterized in that: the support mechanism comprises a base, a left bracket and a right bracket, wherein the lower parts of the left bracket and the right bracket are respectively and symmetrically fixed on the left side and the right side of the base;
the deformation acquisition mechanism comprises a first rectangular frame, a second rectangular frame, an acquisition platform, a first detection device and a second detection device, wherein the first rectangular frame and the second rectangular frame are fixed on a left bracket and a right bracket, and the first rectangular frame is arranged on the upper edge of the second rectangular frame; the first rectangular frame and the second rectangular frame are respectively provided with a round hole, the first detection device penetrates through the round holes in the first rectangular frame, and the second detection device penetrates through the round holes in the second rectangular frame; the first detection device and the second detection device are connected with the acquisition platform through transmission lines.
The first rectangular frame and the second rectangular frame are rotationally fixed on the left bracket and the right bracket through fixing nuts.
The detection device is a displacement sensor.
The acquisition platform is a computer.
A collection method using an asphalt mixture transverse shear deformation collection device is characterized in that: firstly, placing asphalt mixture in a range limited by a first rectangular frame and a second rectangular frame on a base, respectively inserting a first detection device and a second detection device into round holes of the first rectangular frame and the second rectangular frame, enabling the first detection device and the second detection device to contact the asphalt mixture, then using the first detection device and the second detection device to monitor transverse shearing deformation of the asphalt mixture, transmitting the monitoring situation to an acquisition platform in real time through a transmission line and storing the monitoring situation in the acquisition platform, and finally outputting and storing quantized data of the transverse shearing deformation in a form mode by the acquisition platform, thus completing acquisition of transverse shearing shape thinning characteristics of the asphalt mixture.
The invention has reasonable structure and convenient use, and the invention provides a transverse shear deformation acquisition device for asphalt mixture, which comprises a device supporting mechanism and a deformation acquisition mechanism, wherein the device supporting mechanism comprises a device base and left and right brackets, and the lower parts of the left and right brackets are symmetrically fixed on the left and right sides of the device base; the deformation acquisition mechanism comprises a first rectangular frame, a second rectangular frame and detection devices (comprising a first detection device and a second detection device), wherein the first rectangular frame and the second rectangular frame are fixed on a left bracket and a right bracket and are fixed by fixing nuts in a rotating manner, the first detection device and the second detection device are respectively arranged on the first rectangular frame and the second rectangular frame, and the acquisition platform is connected with the detection devices (the first detection device and the second detection device) through transmission lines.
The invention also provides a system for collecting the transverse shear deformation of the asphalt mixture, which comprises a computer, a transmission line and the transverse shear deformation collecting mechanism of the asphalt mixture. The detection device in the deformation acquisition mechanism is directly connected with a computer through a transmission line.
The technical scheme provided by the invention has the following beneficial effects:
1) The two sides of the first rectangular frame and the second rectangular frame are provided with round holes, and the detection device is fixed according to the round holes and is contacted with a tested piece (asphalt mixture).
2) Two rectangular frames (a first rectangular frame and a second rectangular frame) are arranged, and transverse shearing deformation amounts of two heights of a test piece (asphalt mixture) are measured.
3) The detection device is a displacement sensor, the displacement sensor is used for detecting the transverse shearing deformation of the asphalt mixture, the deformation detection result can be directly obtained, the detection precision of displacement can be improved, and the acquisition mode is simple.
Drawings
FIG. 1 is a general view of an asphalt mixture transverse shear deformation collecting apparatus of the present invention.
FIG. 2 is a support mechanism for the asphalt mixture transverse shear deformation collection device of the present invention.
FIG. 3 is a top view of the asphalt mixture transverse shear deformation collecting apparatus of the present invention.
Fig. 4 is a side view of the asphalt mixture transverse shear deformation collecting apparatus of the present invention.
Fig. 5 is an enlarged view of a rectangular frame of the asphalt mixture transverse shear deformation collecting apparatus of the present invention.
In the figure: 1 base, 2 first rectangle frame, 3 fixation nut, 4 second rectangle frame, 5 left socle, 6 bituminous mixture, 7 right branch frame, 8-1 first detection device, 8-2 second detection device.
Detailed Description
In order to clarify the technical scheme and technical purpose of the present invention, the present invention will be further described with reference to the accompanying drawings and the detailed description.
The device comprises a supporting mechanism and a deformation acquisition mechanism, wherein the supporting mechanism comprises a base 1, a left bracket 5 and a right bracket 7, and the lower parts of the left bracket 5 and the right bracket 7 are respectively and symmetrically fixed on the left side and the right side of the base 1;
the deformation acquisition mechanism comprises a first rectangular frame 2, a second rectangular frame 4, an acquisition platform, a first detection device 8-1 and a second detection device 8-2, wherein the first rectangular frame 2 and the second rectangular frame 4 are both fixed on a left bracket 5 and a right bracket 7, and the first rectangular frame 2 is arranged on the upper edge of the second rectangular frame 4; the first rectangular frame 2 and the second rectangular frame 4 are respectively provided with round holes, specifically, the first rectangular frame 2 is provided with 2 round holes, the 2 round holes are respectively arranged on two sides of the first rectangular frame 2, the second rectangular frame 4 is provided with 2 round holes, and the 2 round holes are respectively arranged on two sides of the second rectangular frame 4. The first detection device 8-1 penetrates through a round hole in the first rectangular frame 2, and the second detection device 8-2 penetrates through a round hole in the second rectangular frame 4; the first detection device 8-1 and the second detection device 8-2 are connected with the acquisition platform through transmission lines.
Further, the first rectangular frame 2 and the second rectangular frame 4 are both rotatably fixed on the left bracket 5 and the right bracket 7 through the fixing nuts 3. The detection device 8 is a displacement sensor. The collection platform is a computer.
When the device is used, firstly, the asphalt mixture 6 is placed in a range limited by the first rectangular frame 2 and the second rectangular frame 4 on the base 1, the first detection device 8-1 and the second detection device 8-2 are respectively inserted into round holes of the first rectangular frame 2 and the second rectangular frame 4, the first detection device 8-1 and the second detection device 8-2 are in contact with the asphalt mixture, then the first detection device 8-1 and the second detection device 8-2 are used for monitoring the transverse shearing deformation of the asphalt mixture, the monitoring situation is transmitted to the acquisition platform through a transmission line in real time and is stored in the acquisition platform, finally, the acquisition platform outputs and stores quantized data of the transverse shearing deformation in a form, and the acquisition of transverse shearing deformation of the asphalt mixture is completed.
The basic idea of the invention is as follows: the test piece (asphalt mixture) is fixed through the supporting mechanism, the deformation monitoring device is fixed through the rectangular frame and the fixing nut, the deformation monitoring device and the computer are used for realizing the collection of deformation, and the detection precision of displacement is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the foregoing embodiments and description are not intended to limit the invention, but rather the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention, as defined by the claims, specification, and equivalents thereof.
Claims (3)
1. The utility model provides a transverse shear deformation collection system of bituminous mixture, includes supporting mechanism and deformation collection mechanism, its characterized in that: the supporting mechanism comprises a base (1), a left bracket (5) and a right bracket (7), wherein the lower parts of the left bracket (5) and the right bracket (7) are respectively and symmetrically fixed on the left side and the right side of the base (1);
the deformation acquisition mechanism comprises a first rectangular frame (2), a second rectangular frame (4), an acquisition platform, a first detection device (8-1) and a second detection device (8-2), wherein the first rectangular frame (2) and the second rectangular frame (4) are fixed on a left bracket (5) and a right bracket (7), and the first rectangular frame (2) is arranged on the upper edge of the second rectangular frame (4); the first rectangular frame (2) and the second rectangular frame (4) are respectively provided with a round hole, the first detection device (8-1) penetrates through the round holes in the first rectangular frame (2), and the second detection device (8-2) penetrates through the round holes in the second rectangular frame (4); the first detection device (8-1) and the second detection device (8-2) are connected with the acquisition platform through transmission lines;
the first detection device (8-1) and the second detection device (8-2) are displacement sensors and are connected with the acquisition platform through transmission lines; the acquisition platform is a computer and is connected with the first detection device (8-1) and the second detection device (8-2) through transmission lines;
during collection, firstly, an asphalt mixture test piece (6) is placed in a range limited by a first rectangular frame (2) and a second rectangular frame (4) on a base (1), a first detection device (8-1) and a second detection device (8-2) are respectively inserted into round holes of the first rectangular frame (2) and the second rectangular frame (4), the first detection device (8-1) and the second detection device (8-2) are in contact with the asphalt mixture test piece (6), then the first detection device (8-1) and the second detection device (8-2) are used for monitoring transverse shearing deformation of the asphalt mixture test piece (6), the monitoring conditions are transmitted through a transmission line in real time and stored to a collection platform, and finally the collection platform outputs and stores data of the transverse shearing deformation in a form, so that collection of transverse shearing deformation characteristics of the asphalt mixture is completed.
2. The device for collecting transverse shear deformation of asphalt mixture according to claim 1, wherein the device is characterized in that: the first rectangular frame (2) and the second rectangular frame (4) are rotationally fixed on the left bracket (5) and the right bracket (7) through fixing nuts (3).
3. The device for collecting transverse shear deformation of asphalt mixture according to claim 1, wherein the device is characterized in that: the first rectangular frame (2) is provided with 2 round holes, the 2 round holes are respectively arranged at two sides of the first rectangular frame (2), and the first detection device (8-1) penetrates through the round holes in the first rectangular frame (2); the second rectangular frame (4) is provided with 2 round holes, the 2 round holes are respectively arranged on two sides of the second rectangular frame (4), and the second detection device (8-2) penetrates through the round holes on the second rectangular frame (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376018.5A CN107024389B (en) | 2017-05-25 | 2017-05-25 | Asphalt mixture transverse shear deformation acquisition device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710376018.5A CN107024389B (en) | 2017-05-25 | 2017-05-25 | Asphalt mixture transverse shear deformation acquisition device and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107024389A CN107024389A (en) | 2017-08-08 |
| CN107024389B true CN107024389B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710376018.5A Active CN107024389B (en) | 2017-05-25 | 2017-05-25 | Asphalt mixture transverse shear deformation acquisition device and method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250683A (en) * | 2001-02-26 | 2002-09-06 | Kajima Corp | Device and method for testing deformation performance of asphalt material |
| RU65229U1 (en) * | 2007-02-28 | 2007-07-27 | Общество с ограниченной ответственностью "Строительная лаборатория" (ООО "Строительная лаборатория") | DEVICE FOR ASPHALT CONCRETE TEST FOR MOVABILITY |
| CN102183412A (en) * | 2011-02-18 | 2011-09-14 | 浙江大学 | Tension-shear coupling characteristic tester of asphalt concrete material |
| CN105136587A (en) * | 2015-09-01 | 2015-12-09 | 武汉路源工程质量检测有限公司 | Bituminous mixture rutting test device |
| CN105277434A (en) * | 2015-09-25 | 2016-01-27 | 扬州大学 | Asphalt mixture rut deformation characteristic acquisition apparatus and system thereof |
| CN106370528A (en) * | 2016-08-21 | 2017-02-01 | 浙江科技学院 | Portable rock structure surface direct shearing tester |
| CN206876487U (en) * | 2017-05-25 | 2018-01-12 | 扬州大学 | A kind of asphalt lateral shear deformation harvester |
-
2017
- 2017-05-25 CN CN201710376018.5A patent/CN107024389B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002250683A (en) * | 2001-02-26 | 2002-09-06 | Kajima Corp | Device and method for testing deformation performance of asphalt material |
| RU65229U1 (en) * | 2007-02-28 | 2007-07-27 | Общество с ограниченной ответственностью "Строительная лаборатория" (ООО "Строительная лаборатория") | DEVICE FOR ASPHALT CONCRETE TEST FOR MOVABILITY |
| CN102183412A (en) * | 2011-02-18 | 2011-09-14 | 浙江大学 | Tension-shear coupling characteristic tester of asphalt concrete material |
| CN105136587A (en) * | 2015-09-01 | 2015-12-09 | 武汉路源工程质量检测有限公司 | Bituminous mixture rutting test device |
| CN105277434A (en) * | 2015-09-25 | 2016-01-27 | 扬州大学 | Asphalt mixture rut deformation characteristic acquisition apparatus and system thereof |
| CN106370528A (en) * | 2016-08-21 | 2017-02-01 | 浙江科技学院 | Portable rock structure surface direct shearing tester |
| CN206876487U (en) * | 2017-05-25 | 2018-01-12 | 扬州大学 | A kind of asphalt lateral shear deformation harvester |
Non-Patent Citations (2)
| Title |
|---|
| 《A micromechanical approach to investigate asphalt concrete rutting mechanisms》;Erdem Coleri等;《Construction and Building Materials》;20120531;第30卷;36-49 * |
| 考虑沥青混合料泊松比影响的路面结构应力分析;乔英娟等;《吉林大学学报(工学版)》;20090115(第01期);52-57 * |
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| CN107024389A (en) | 2017-08-08 |
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